Definition of petty canon in US English:

petty canon

(also peticanon)

noun

Anglican Church
historical
  • A member of the clergy who assists with the daily services of a cathedral but is not a member of the chapter.

Origin

Mid 16th century; earliest use found in John Palsgrave (d. 1554), teacher and scholar of languages. From petty + canon. Compare post-classical Latin peticanonicus.

Pronunciation

petty canon

/ˌpɛtɪ ˈkanən/